Overview

Comprehensive Description

Description

  Common names: snake-eel (English), tieso (Espanol)
 
Quassiremus nothochir (Gilbert, 1890)


Redsaddled snake-eel,     Redbanded snake-eel,     Smallfish snake-eel



Body stout, compressed at rear; tail 44-47% of TL; snout conical, overhanging, with a short groove underneath; lips without barbells; front nostril tubular, rear opens into mouth; gill opening a vertical crescent low on side; teeth pointed, in single rows on jaws and roof of mouth; dorsal fin origin behind gill opening; pectoral fin very tiny, smaller than or equal to eye, its narrow base opposite the top ½ of the gill opening; tail tip a blunt, finless point.


Ground color cream to tan; head with close- set black spots; about 15 large black-edged, red/orange, saddle-like markings on body, with large and small black spots in the spaces between. 



Size: reaches about 70 cm.

Habitat: rubble and rocky bottoms.

Depth: 1-20 m.

The lower 2/3 of the Gulf of California to central Mexico, Costa Rica to W Panama; Cocos Is
   
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Biology

Inhabits sandy and rocky bottoms, from shallow waters up to a depth of 20 m.
  • McCosker, J.E. and R.H. Rosenblatt 1995 Ophichthidae. Tiesos, serpentones. p. 1326-1341. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9328)   http://www.fishbase.org/references/FBRefSummary.php?id=9328&speccode=13898 External link.
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Distribution

Range Description

This species is found in the Eastern Pacific in the southern Gulf of California, and from Costa Rica to central Panama (McCosker and Rosenblatt, 1995).
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Zoogeography

See Map (including site records) of Distribution in the Tropical Eastern Pacific 
 
Global Endemism: All species, East Pacific endemic, Tropical Eastern Pacific (TEP) endemic

Regional Endemism: All species, TEP endemic, Continental TEP endemic, 3 provinces (Cortez + Mexican + Panamic) endemic, Continent, Continent only

Residency: Resident

Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap), Northern Tropical (Mexican Province to Nicaragua + Revillagigedos), Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
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Eastern Central Pacific: Gulf of California to Costa Rica.
  • McCosker, J.E. and R.H. Rosenblatt 1995 Ophichthidae. Tiesos, serpentones. p. 1326-1341. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9328)   http://www.fishbase.org/references/FBRefSummary.php?id=9328&speccode=13898 External link.
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Eastern Pacific.
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Depth

Depth Range (m): 1 (S) - 20 (S)
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Physical Description

Morphology

Size

Length max (cm): 70.0 (S)
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Size

Maximum size: 700 mm TL
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Max. size

70.0 cm TL (male/unsexed; (Ref. 9328))
  • McCosker, J.E. and R.H. Rosenblatt 1995 Ophichthidae. Tiesos, serpentones. p. 1326-1341. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9328)   http://www.fishbase.org/references/FBRefSummary.php?id=9328&speccode=13898 External link.
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Type Information

Syntype for Ophichthys nothochir Gilbert
Catalog Number: USNM 46588
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1889
Locality: Gulf of California: San Josef (Sic) Island., Baja California Sur, Mexico, Pacific
Vessel: Albatross
  • Syntype: Gilbert, C. H. 1891(1890). Proceedings of the United States National Museum. 13 (797): 58.
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Syntype for Ophichthys nothochir Gilbert
Catalog Number: USNM 44296
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1889
Locality: San Josef Island, Gulf of California, Baja California Sur, Mexico, Gulf of California, Pacific
Vessel: Albatross
  • Syntype: Gilbert, C. H. 1891(1890). Proceedings of the United States National Museum. 13 (797): 58.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species inhabits sand with rubble and rocky substrate in shallow waters to a depth of 20m.

Systems
  • Marine
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Environment

demersal; marine; depth range ? - 20 m (Ref. 9328)
  • McCosker, J.E. and R.H. Rosenblatt 1995 Ophichthidae. Tiesos, serpentones. p. 1326-1341. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9328)   http://www.fishbase.org/references/FBRefSummary.php?id=9328&speccode=13898 External link.
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Depth range based on 2 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 7.5 - 14
  Temperature range (°C): 27.485 - 27.485
  Nitrate (umol/L): 2.498 - 2.498
  Salinity (PPS): 33.044 - 33.044
  Oxygen (ml/l): 4.602 - 4.602
  Phosphate (umol/l): 0.409 - 0.409
  Silicate (umol/l): 2.926 - 2.926

Graphical representation

Depth range (m): 7.5 - 14
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 0 - 20m.
Recorded at 20 meters.

Habitat: demersal.
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Salinity: Marine, Marine Only

Inshore/Offshore: Inshore, Inshore Only

Water Column Position: Bottom, Bottom only

Habitat: Reef (rock &/or coral), Rocks, Reef and soft bottom, Reef associated (reef + edges-water column & soft bottom), Soft bottom (mud, sand,gravel, beach, estuary & mangrove), Sand & gravel

FishBase Habitat: Demersal
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Trophic Strategy

Feeding

Feeding Group: Carnivore

Diet: mobile benthic crustacea (shrimps/crabs), bony fishes
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Life History and Behavior

Reproduction

Egg Type: Pelagic, Pelagic larva
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
McCosker, J., Béarez, P. & and Lea, B.

Reviewer/s
Carpenter, K., Polidoro, B. & Livingstone, S. (Global Marine Species Assessment Team)

Contributor/s

Justification
This species is widespread in the Eastern Pacific region. No major threats to this species are known, and there is no current indication of population decline. It is listed as Least Concern.
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IUCN Red List: Not evaluated / Listed

CITES: Not listed
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Population

Population
No population information is available for this species.

Population Trend
Unknown
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Threats

Major Threats
There are no major threats known for this species.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no known specific conservation measures for this species. However, this species distribution falls partially into a number of Marine Protected Areas, including those in the Gulf of California (WDPA 2006).
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Wikipedia

Smallfish snake-eel

The Smallfish snake-eel (Quassiremus nothochir, also known as the Redsaddled snake eel in Mexico[2]) is an eel in the family Ophichthidae (worm/snake eels).[3] It was described by Charles Henry Gilbert in 1890.[4] It is a marine, tropical eel which is known from the eastern central Pacific Ocean, including Mexico, Nicaragua, Panama, the Gulf of California and Costa Rica.[5] It dwells in shallow waters at a maximum depth of 20 metres (66 ft), and inhabits sand and rock sediments. Males can reach a maximum total length of 70 centimetres (28 in).[3]

Due to its wide distribution in its region, its lack of known threats and lack of observed population decline, the IUCN redlist currently lists the Smallfish snake-eel as Least Concern.[5]

References[edit]

  1. ^ Synonyms of Quassiremus nothochir at www.fishbase.org.
  2. ^ Common names of Quassiremus nothochir at www.fishbase.org.
  3. ^ a b Quassiremus nothochir at www.fishbase.org.
  4. ^ Gilbert, C. H. 1890 (1 July) [ref. 1623] A preliminary report on the fishes collected by the steamer Albatross on the Pacific coast of North America during the year 1889, with descriptions of twelve new genera and ninety-two new species. Proceedings of the United States National Museum v. 13 (no. 797): 49-126.
  5. ^ a b Quassiremus nothochir at the IUCN redlist.
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